摘要:
An I.S. Machine is provided wherein the blow molds are closed to a slightly cracked location whereby applied cooling air can not leak into and pressurize the blow mold thereby damaging the parison during reheat. When reheat is completed, the blow molds are fully closed and the parison is transformed into a bottle by applying compressed air and/or vacuum.
摘要:
A control for a glass forming machine is disclosed which receives as an input the event angles used to control the machines operation. These event angles, which define the time in a cycle when each event is turned on and off, are unwrapped to represent times in the glass forming process which takes more than two machine cycles to complete. A computerized model of the unwrapped cycle is defined and a control analyzes the computerized model as a constrained optimization problem to define an optimized schedule of event times and defines a plurality of intermediate event time schedules in an incremental application.
摘要:
A pusher mechanism for pushing bottles formed in an I. S. machine from a dead plate to a conveyor. The pusher mechanism includes a pusher finger assembly which is supported by a housing and is movable about an axis of support and about the parallel axis of rotation of the housing. A pair of servo motors effect the desired rotation of the two axes through cam profiles each of which has at least one Bezier curve segment with a parameter of one curve linked to a parameter of the other curve.
摘要:
A control for defining data for setting the times for controlled events in a glass forming machine which is controlled by a programmable sequencer which defines the time of a machine cycle. The control includes a computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete and a computer for analyzing the computerized model as a constrained optimization problem for determining, with the following data inputs: 1. the motion durations, 2. the submotion durations, 3, the machine cycle time, 4. the event time for each displacement to begin and for each valve to be turned “on” and “off”, and 5. the thermal forming process durations, whether there is a feasible optimized schedule and the machine cycle time and the event time for each displacement to begin and for each valve to be turned “on” and “off”.
摘要:
A method of operating a Kalina cycle power generation system, includes directing a stream of vaporized binary working fluid to a turbine where it is expanded to produce power. A first portion of the expanded binary working fluid is directed to a distiller/condenser having multiple heat exchangers where, using the multiple heat exchangers, it is transformed into a first concentration binary working fluid, having a first concentration of a component of the binary working fluid, and a second concentration binary working fluid, having a second concentration of the component. At least the first concentration binary working fluid directed to a regenerative heat exchanger. A second portion of the expanded binary working fluid is directed to the regenerative heat exchanger where the first concentration binary working fluid is transformed into a vaporized binary working fluid and the second portion of expanded binary working fluid is transformed into a feed binary working fluid. The feed binary working fluid is directed to a vapor generator where it is vaporized. The binary working fluid flow within the distiller/condenser is actively regulated to maintain a desired relationship between the multiple heat exchangers.
摘要:
A method of operating a power generation system, such as a Kalina cycle power generation system, which includes a turbine, regenerative heat exchanger and vapor generator, is provided. The turbine receives a stream of first working fluid and expands the first working fluid to produce power. The regenerative heat exchanger receives a stream of the expanded first working fluid from the turbine and a stream of second working fluid, and transfers heat from the expanded first working fluid to the second working fluid to heat the second working fluid and condense the expanded first working fluid. The vapor generator receives a stream of the condensed first working fluid and transfers heat from an external heat source to the condensed first working fluid to heat the condensed working fluid for use in the stream of first working fluid. The system is operable in a first state of substantial equilibrium with the stream of second working fluid being received at a first flow rate and in a second state of substantial equilibrium with the stream of second working fluid being regulated so as to be received at a second flow rate, different than the first flow rate.
摘要:
A control system for a fuel-fired furnace and more specifically the control of the stoichiometric ratio of the combustion process occurring within the furnace of a steam generating power plant. The control system, when so employed, is capable of regulating the distribution of air flow to the combustion process such that the formation of oxides of nitrogen are maintained at acceptable levels. The control system includes in general a stoichiometric subsystem that determines the mass flow rate of air required to maintain the stoichiometric ratio within the combustion process; an override protection subsystem which ensures control precedence of the windbox-to-furnace pressure differential over the stoichiometry subsystem; and an overfire air subsystem that acts to apportion air flow amongst the various levels of overfire air within the boiler.
摘要:
A system and method for the optimization of the cycles of events occurring in an I.S. machine that automatically optimizes the cycles of events occurring in an I.S. machine by using information relating to the characteristics of the hot glass containers manufactured by the I.S. machine obtained by monitoring the hot glass containers immediately subsequent to their manufacture. Optionally, information relating to process values associated with the operation of the I.S. machine may also be monitored and used in the optimization of the cycles of events occurring in the I.S. machine. Also optionally, the active limits of the event times may be modified by an operator based upon observations of the operation of the I.S. machine.
摘要:
A system and method for automatically adjusting the motion and timing of pusher mechanisms in an I.S. machine to maintain desired spacing and lateral alignment of glass containers on a conveyor taking them from the I.S. machine where they are molded. The measured glass container placement and the desired glass container placement are used to vary the operation of the pusher mechanisms in a manner tending to obtain the desired placement.
摘要:
A glass forming machine has a set machine cycle time. Each of the mechanisms, etc., is cycled during the time of one machine cycle. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete is defined to facilitate the analysis and control of the machine cycle.